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Question to those astrophotographers out there. I notice the cooler has a fan on it, is the fan vibration damped somehow?

I shoot a lot of long distance photos (300mm F/2.8 and 600mm F/4 are my main lenses). Any vibration is greatly amplified when I shoot, and this is a much longer range than that.




Good question. I have a peltier cooled ccd (atik 460) and the fan stays on during the entire exposure, but it doesn't affect the final picture at all, touching the camera I can't feel any vibration, but can hear the fan. Quality is much better than in my fanless Canon 400D.


Most Pelletier chilled assemblies use magnetic bearings for fans, so very low shake. I use an Orion star shoot G3 (can't really recommend it), but vibration from quarrying 20 miles away is more of a problem than the fan.

Oh, and that's on 2032mm f/10.


I notice the cooler has a fan on it, is the fan vibration damped somehow?

I'd assume that the fan is simply turned off for the duration of a photo (plus the time it takes for vibrations to decay). The sensor won't heat up instantaneously.




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